Where is it now
- Distance from Sun
- 0.574 AU
- True anomaly
- 57.75°
- Distance from Earth
- 1.08 AU
- As of
- 17 October 2026
Two-body Kepler propagation — accurate to ~0.1% for major planets over decades, less so for highly-perturbed bodies. Use JPL Horizons for high precision.
In the sky
- Right ascension
- 15h 44m 26s
- Declination
- -16° 14′ 42″
- Constellation
- Libra
- Distance from Earth
- 1.07 AU
- Elongation from the Sun
- 32.41° — near the Sun — look low at dusk or dawn
Favours the southern hemisphere; low or below the horizon from far north.
From your location
See how high it is right now, whether it is up after civil twilight, and when it rises and sets where you are.
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Two-body approximation, good to about a degree for the planets — enough to find the constellation and know whether it is up.
Orbital elements
- Semi-major axis
- 0.822 AU
- Eccentricity
- 0.3933
- Inclination
- 10.87°
- Orbital period
- 272.2 days
- Perihelion
- 0.499 AU
- Aphelion
- 1.145 AU
- Longitude of ascending node
- 268.97°
- Argument of periapsis
- 336°
- Epoch · J2000
- 2461200.5
- Orbit class · ATE
- Aten
- Earth MOID · 19.8 LD
- 0.051 AU
- Tisserand (Jupiter)
- 7.049
Orbit quality
Orbit poorly determined (uncertainty code 7).
- Observations used
- 58
- Data arc
- 25 days
- First observed
- 10 December 2024
- Last observed
- 4 January 2025
- Residual RMS
- 0.47 ″
- Solution · Otto Matic
- 4 January 2025
Visual & observation
- Absolute magnitude (H)
- 23.6
Discovery & classification
Close approaches 39 on record
Top-down view of the ecliptic, Earth at the centre, for the 2028-01-03 17:40 UTC close approach of 2024 YA1. Catalogue miss distance 20.2 LD · 7.75 × 10⁶ km. The curve is the geocentric path from 2027-12-31 to 2028-01-06, with a mark at UTC midnights and an arrow for the direction of motion. The circle is the Moon’s mean orbit; the Moon is plotted at closest approach. A ray shows the Sun’s direction. The labelled distance is the full separation. The drawn radius is the part that lies in the ecliptic plane. At closest approach the object is south of the ecliptic. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate.
| When (UTC) | Body | Distance | Lunar distances | Relative speed |
|---|---|---|---|---|
| 2028-01-03 17:40:00 | Earth | 0.0518 AU | 20.2 LD | 11.3 km/s |
| 2031-01-04 17:55:00 | Earth | 0.1113 AU | 43.3 LD | 14.3 km/s |
| 2034-03-12 01:24:00 | Mercury | 0.0486 AU | 18.9 LD | 17.2 km/s |
| 2034-03-12 01:24:00 | Merc | 0.0486 AU | 18.9 LD | 17.2 km/s |
| 2042-05-22 08:40:00 | Merc | 0.0333 AU | 13.0 LD | 16.8 km/s |
| 2042-05-22 08:40:00 | Mercury | 0.0333 AU | 13.0 LD | 16.8 km/s |
| 2047-10-22 05:32:00 | Earth | 0.1826 AU | 71.1 LD | 12.9 km/s |
| 2050-08-02 08:42:00 | Merc | 0.0509 AU | 19.8 LD | 17.8 km/s |
| 2050-08-02 08:42:00 | Mercury | 0.0509 AU | 19.8 LD | 17.8 km/s |
| 2050-10-27 21:04:00 | Earth | 0.1673 AU | 65.1 LD | 10 km/s |
Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.
Sources
- visual properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB